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  1. I think the flat ribbon wire leads say it is an...

    I think the flat ribbon wire leads say it is an original. The China repro's are round wire. That has been my experience, at least from a few years ago.
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    Looking at the 4429 and S-4700 schematics. The...

    Looking at the 4429 and S-4700 schematics. The biggest change to the midrange crossover is in R4. They used a 3.0 Ohm resistor verses the 2.2 Ohm in the 4429. That change should raise the lower end...
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    4429 verses S4700 Crossover

    David. The 4429 and the S4700 look to have the same mid and HF drivers. Horns look to be very similar. If you examine the schematics of each, it becomes obvious that the S4700 crossover is complex by...
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    David. If I were in Paris I would pick up your...

    David. If I were in Paris I would pick up your pair of 4430s. Upgrade them with the drop in 2216nd's. I must admit, I also really like those old constant directive horns. I have a pair of 4425's with...
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    Ian. One thing for sure, I was a little rash...

    Ian. One thing for sure, I was a little rash about a replacement crossover for the 4429 as it has a constant directivity horn. Definitely needs the dome mass dominance compensation circuitry of the...
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    Hey David. It's just a hobby. Only thing required...

    Hey David. It's just a hobby. Only thing required is Money. Keep us in the loop with your 4429 adventures. Don't know that a $10,000 dollar plus Mark Levinson will make them sound like a million...
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    David. I do compare the 4429s to the 4333s...

    David. I do compare the 4429s to the 4333s frequently. The 4429s does have a tendency to exaggerate the bass my room. I also think the 4333s have a more realistic mid range. Vocals are where the old...
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    I have the Mid horn set to the top of the ball in...

    I have the Mid horn set to the top of the ball in the center zero point. The HF horn to the lower end of the ball in the center zero point. David. Do you have a calibrated microphone?
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    David. I have the 4429's. Had them for several...

    David. I have the 4429's. Had them for several years. I would recommend the stands that come with the L100 Classic 75's. You can buy them separately. Also, they seem to image best pointed straight...
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    Agree with Widget. I have been using the 2216Nd...

    Agree with Widget. I have been using the 2216Nd in place of the 2235's in my 4333's. Never looked back. The 30 Hz is down though. Lower midrange matches with the 2420 seamlessly. I believe the M-2...
  11. Thread: Goop

    by johnlcnm
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    Or, E-6000! Best grill cover cement in the world!

    Or, E-6000! Best grill cover cement in the world!
  12. I have one of the few pair of 4429's in the USA....

    I have one of the few pair of 4429's in the USA. Recently, I have developed a new appreciation for these replacements for the 4425. In the past I have always placed these speakers with the horns...
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    Looks like a pretty old thread, but I'll bite!...

    Looks like a pretty old thread, but I'll bite! Heather appears to be the only old timer here still actively collecting. I've sort of joined that non collector crowd as well. My favorites are a pair...
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    Not quite having stock 4333B's, I replaced the...

    Not quite having stock 4333B's, I replaced the 2235H's with 2216Nd's. Crossovers were replaced with the Pass charge coupled units. I did not A/B non-modified verses modified directly, but I did note...
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    If you don't have The JBL Story by John Eargle,...

    If you don't have The JBL Story by John Eargle, pick up a copy. I found one used on E-Pay for ten bucks.
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    My best guess is yes for substitution. I am...

    My best guess is yes for substitution. I am running 4333B's with the 2216nd bass drivers. They however are not a cheap driver. Around $600 each US. Most of the JBL box tunes in the 1980s were...
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    Nice find! I also really like those horns. Very...

    Nice find! I also really like those horns. Very smooth and detailed to my ears. Need to put my pair back into the active rotation. I too wanted a pair of 4430's. Thought they would be world class...
  18. Thread: 4333 build

    by johnlcnm
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    Not that I am a welled healed JBL aficionado, but...

    Not that I am a welled healed JBL aficionado, but I highly recommend the Nelson Pass charge coupled crossover network. I am using it in my current 4333B's. You might also consider replacing the...
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    Very nice work Mike! If I lived in your area I...

    Very nice work Mike! If I lived in your area I would give you a shout. It does look like the 2405s are moving to the world of the unobtainium. The diaphragms are no longer sold by JBL, and the Chicom...
  20. Thread: L 300 do-over

    by johnlcnm
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    Recognize that Zonker CC crossover! Did you...

    Recognize that Zonker CC crossover! Did you replace the 2420 diaphragms with the Radians?
  21. Thread: L 300 do-over

    by johnlcnm
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    Beautiful veneer Woody! Yeh. I love my 4333s. Not...

    Beautiful veneer Woody! Yeh. I love my 4333s. Not as nice as the L300 looks wise, but damn they are flat with superb detail. Keepers for sure.

    Regards,

    John
  22. Thread: Help

    by johnlcnm
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    Box Sound Damping. The JBL boxes I have seen use...

    Box Sound Damping. The JBL boxes I have seen use damping sparingly. Usually two inches thick on back and sides. None on the front. The idea is to keep the box Q as high as possible. The T/S base...
  23. Thread: Help

    by johnlcnm
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    First, I apologize for another derailment....

    First, I apologize for another derailment. OP-38s? How many cylinders? Question from an X-Birdfarmer. OP-38s used in the carrier, The FDR, back up generator room.
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    I have a pair 4333Bs that have been heavily...

    I have a pair 4333Bs that have been heavily reworked. New JBL diaphragms in the 2405s. New Radians in the 2420s. New charge coupled Nelson Pass crossover for the L300s. 2216nds replaced the 2235Hs....
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    One thing that has become apparent with the Pass...

    One thing that has become apparent with the Pass network, driver integration. I really cannot hear different drivers. Nothing stands out as a three way system. In other words, the sound is not bound...
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